How long does an Onsite CRM to GoHighLevel migration take?

Migrations under 5,000 Contacts and 1,000 Deals with straightforward custom field configurations complete in two to four weeks. Migrations with multiple custom fields, complex pipeline stage configurations, or large activity histories requiring normalization move to four to eight weeks. The primary variable is not record count but the complexity of the CSV export coordination and the custom field mapping decisions that must be resolved before GoHighLevel import begins.

Do Onsite CRM automations and workflows migrate to GoHighLevel?

No. GoHighLevel workflows are built inside its visual workflow builder and do not accept imported automation logic from external systems. We deliver a written inventory of any automation or outreach sequences found in the customer's Onsite CRM instance during discovery, with each item documented as a trigger, condition, and action set that the customer's admin can recreate in GoHighLevel's workflow builder. This is a separate engagement from the data migration scope.

What does an Onsite CRM to GoHighLevel migration typically cost?

Migrations under 5,000 Contacts and 1,000 Deals with no complex custom fields land between $2,500 and $4,000. Migrations with multiple custom fields, historical activity exports, or pipeline configurations with custom stages move to $5,000-$7,500. GoHighLevel subscription costs ($97-$497 per month depending on plan) sit outside the migration fee and are the customer's ongoing operational cost. The Starter plan at $97 per month includes unlimited users and contacts, which is frequently less expensive than Onsite CRM for teams growing beyond the initial user count.

Can we keep Onsite CRM running during migration?

We recommend a read-only freeze on Onsite CRM during the final cutover window (typically 24-48 hours) to capture any records created or modified during the migration process. We run a delta export and import any new or changed records before switching GoHighLevel to active status. Running both systems in parallel for an extended period is not recommended because it introduces data divergence and increases reconciliation effort post-migration.

Do we lose historical activity data (calls, emails, tasks)?

We migrate whatever Onsite CRM's in-app export exposes. The risk is that Onsite CRM's CSV export may not include complete activity history in a single file, may truncate email body content, or may not export call duration and disposition data. We test the activity export during discovery, flag any gaps, and include unmappable activity records in the migration notes for manual re-entry if the data is business-critical. We do not guarantee complete activity history migration from Onsite CRM due to the platform's limited export capabilities.

What happens to Onsite CRM custom fields during migration?

Custom fields migrate to either GoHighLevel Contact custom fields or Opportunity custom fields depending on whether the custom field is attached to a Contact or a Deal in Onsite CRM. We confirm the target field type during scoping, create the corresponding custom field in GoHighLevel, and transform the value to match GoHighLevel's accepted format (text, number, date, single-select, multi-select, phone, currency). Any field type that GoHighLevel does not support natively is flagged for transformation or manual review.

Why do teams switch from Onsite CRM to GoHighLevel specifically?

The primary drivers are API access, platform scale, and feature depth. Onsite CRM has no documented public API, which blocks integrations with form tools, payment processors, and other systems that GoHighLevel connects to natively. GoHighLevel's unlimited-user pricing model on Starter ($97/mo) and Unlimited ($297/mo) plans removes the per-seat cost ceiling that Onsite CRM imposes at scale. Additionally, GoHighLevel's workflow automation, pipeline automation triggers, sub-accounts for agencies, and white-label options provide feature depth that Onsite CRM does not offer.

Does FlitStack AI also help configure GoHighLevel after migration?

Standard migration scope includes GoHighLevel pipeline and custom field configuration before import, plus a written automation inventory for post-migration rebuild. We do not provide post-migration admin support, user training, or workflow rebuild as standard scope. GoHighLevel workflow construction, funnel setup, and team onboarding are separate engagements. We can provide referrals to GoHighLevel-certified consultants if the customer requires implementation support after migration.

Onsite CRM to HighLevel Migration — Field-Level Mapping & Rollback

Overview

What this migration involves

Moving from Onsite CRM to GoHighLevel is a migration from a platform with no documented public API to one built around REST API access and native integrations. Onsite CRM stores data in a Weebly-hosted environment that exposes CSV exports through the application UI but offers no bulk API, webhook, or SDK for programmatic extraction. We extract via in-app CSV, normalize the data structure, and load into GoHighLevel using its Contacts and Opportunities API endpoints. The key complexity is that Onsite CRM's basic object model (Contacts, Companies, Deals, Activities, Custom Fields) requires decisions about GoHighLevel custom field placement (Contact custom fields versus Opportunity custom fields) and whether Onsite CRM company records map to GoHighLevel Contacts with an Organization field or require a separate workflow. We do not migrate Onsite CRM workflows or automations; we deliver a written inventory of any automation logic the customer must rebuild inside GoHighLevel's workflow builder post-migration.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

Onsite CRM

What's pushing teams away

Extremely limited market presence with minimal third-party reviews and community discussion, making it difficult to assess long-term viability.
No publicly documented API, SDK, or webhook infrastructure limits integration options and blocks automated data extraction.
Appears to have weaker reporting and analytics depth compared to established CRM competitors like HubSpot or Pipedrive.
Very small user base on review platforms like G2 and Capterra suggests limited adoption and support ecosystem.
Lacks enterprise-grade features needed as teams scale, driving migration to platforms with better customization and API access.

Choosing

HighLevel

What's pulling them in

Agencies choose HighLevel to consolidate CRM, email, SMS, scheduling, and funnels into one subscription, eliminating monthly bills for five to ten separate SaaS tools they previously stitched together.
The flat-rate pricing model bills per sub-account rather than per contact, so growing a contact database from 1,000 to 100,000 records does not trigger a billing surprise—a common pain point avoided by migrating customers.
White-label and sub-account capabilities let agencies resell HighLevel access to their own clients, turning a software cost center into a recurring revenue stream that justifies the subscription.
The platform ships a 14-day free trial with no credit card required, giving teams a low-friction entry point to validate fit before committing to the $97/month Starter tier.
Marketing agencies managing multiple client accounts use sub-accounts to maintain data isolation per client while operating under a single agency billing relationship with HighLevel.

Object mapping

How Onsite CRM objects map to HighLevel

Each row shows how a Onsite CRM object lands in HighLevel, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

Onsite CRM

Contact

maps to

HighLevel

Contact

1:1

Fully supported

Onsite CRM Contact records (name, email, phone, company association) map directly to GoHighLevel Contact records. The email field serves as the primary deduplication key during import. Any Onsite CRM contact without an email address is flagged for manual review before import because GoHighLevel requires an email for native contact record creation.

Onsite CRM

Company

maps to

HighLevel

Organization or Contact Custom Field

lossy

Fully supported

Onsite CRM Company records map either to GoHighLevel Organization (if the destination account has Organizations enabled) or to a Contact-level custom field holding the company name value. We determine the correct mapping during scoping based on whether the customer's GoHighLevel account has Organizations enabled and whether they track account-level data separately from individual contacts.

Onsite CRM

Deal

maps to

HighLevel

Opportunity

1:1

Fully supported

Onsite CRM Deal records map to GoHighLevel Opportunities. Deal name, value, close date, and stage migrate to the corresponding Opportunity fields. The stage mapping is resolved against GoHighLevel's pipeline stage configuration, which we set up before the Opportunity import begins.

Onsite CRM

Pipeline Stage

maps to

HighLevel

Pipeline Stage

lossy

Fully supported

Onsite CRM pipeline stages map to GoHighLevel pipeline stages within the designated pipeline. We extract stage names, ordering, and any probability or status values from Onsite CRM and recreate them as GoHighLevel stages with matching names and order. GoHighLevel's stage-level automation triggers are noted for the customer's admin to configure post-migration.

Onsite CRM

Activity

maps to

HighLevel

Activity or Note

1:1

Fully supported

Onsite CRM Activities (call logs, SMS threads, email records) map to GoHighLevel Activities attached to the relevant Contact or Opportunity record. We use the activity type to set the GoHighLevel activity subtype. Historical activity export completeness depends on what the Onsite CRM in-app export exposes; we flag any gap in activity data during scoping.

Onsite CRM

Task

maps to

HighLevel

Task

1:1

Fully supported

Onsite CRM Task records (follow-ups and reminders) map to GoHighLevel Tasks with assignee, due date, status, and description preserved. Task assignment resolves against the GoHighLevel user mapping established during user migration.

Onsite CRM

Custom Field

maps to

HighLevel

Contact Custom Field or Opportunity Custom Field

lossy

Fully supported

Onsite CRM custom fields on Contacts and Deals require a type decision during scoping: GoHighLevel separates Contact custom fields (attached to the person) from Opportunity custom fields (attached to the deal). We map Contact-level custom fields to GoHighLevel Contact custom fields and Deal-level custom fields to GoHighLevel Opportunity custom fields. Any custom field type mismatch (e.g., a multi-select in Onsite CRM that GoHighLevel does not support natively) is flagged for transformation or manual entry.

Onsite CRM

Tag

maps to

HighLevel

Tag or Label

1:1

Fully supported

Tags applied to Contacts or Deals in Onsite CRM migrate as GoHighLevel Tags attached to the Contact record. GoHighLevel does not support separate Deal-level tags natively; any Deal-specific tags from Onsite CRM are mapped to Opportunity custom fields or recorded in a migration notes document for the customer's admin to assign manually post-migration.

Onsite CRM

User

maps to

HighLevel

User

1:1

Fully supported

Onsite CRM user records (sales reps and admin users) map to GoHighLevel User accounts by email match. The customer's GoHighLevel admin provisions the users in GoHighLevel before migration, and we reconcile owner assignments on migrated records against the GoHighLevel user list. Any Onsite CRM user without a corresponding GoHighLevel account is held in the reconciliation queue.

Onsite CRM	HighLevel	Compatibility
Contact	Contact1:1	Fully supported
Company	Organization or Contact Custom Fieldlossy	Fully supported
Deal	Opportunity1:1	Fully supported
Pipeline Stage	Pipeline Stagelossy	Fully supported
Activity	Activity or Note1:1	Fully supported
Task	Task1:1	Fully supported
Custom Field	Contact Custom Field or Opportunity Custom Fieldlossy	Fully supported
Tag	Tag or Label1:1	Fully supported
User	User1:1	Fully supported

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

Onsite CRM gotchas

High

No public API documentation found

Medium

Weebly-hosted infrastructure limits data access

Medium

Limited historical activity export

HighLevel gotchas

High

Sub-account architecture creates isolated data silos per client

High

Usage-based telecom and AI costs are not in the subscription price

Medium

Workflows have no native equivalent in most destination CRMs

Medium

API rate limits cap bulk migration throughput at 100 requests per 10 seconds per sub-account

Low

White-label configuration and branding assets do not export via API

Onsite CRM gotchas		HighLevel gotchas
Severity	Issue	Severity	Issue
High	No public API documentation found	High	Sub-account architecture creates isolated data silos per client
Medium	Weebly-hosted infrastructure limits data access	High	Usage-based telecom and AI costs are not in the subscription price
Medium	Limited historical activity export	Medium	Workflows have no native equivalent in most destination CRMs
		Medium	API rate limits cap bulk migration throughput at 100 requests per 10 seconds per sub-account
		Low	White-label configuration and branding assets do not export via API

Pair-specific challenges

Onsite CRM has no public API — extraction relies on CSV exports only

Apitracker.io lists Onsite CRM with no API reference, no SDKs, no Postman collections, and no documented authentication method. We cannot build an automated API-based migration and instead extract data via in-app CSV exports from the Weebly-hosted UI. If the customer has more than 10,000 records or complex custom field configurations, export size limits and repeated manual export steps become a bottleneck. We coordinate with the customer to perform exports in phases and validate each export file before transformation begins.
GoHighLevel workflow automations do not migrate from Onsite CRM

GoHighLevel workflows are built inside its visual workflow builder with triggers, conditions, actions, and delays configured per pipeline and stage. Onsite CRM automations (if any exist in the customer's instance) are a different system with different action types and do not transfer. We deliver a written inventory of any automation logic found in Onsite CRM during scoping, with GoHighLevel workflow builder equivalents documented for the customer's admin to rebuild. We do not build the GoHighLevel workflows as part of the migration scope.
Historical activity export completeness is not guaranteed from Onsite CRM

Onsite CRM's in-app CSV export may not include full activity history (call logs, email threads, SMS records) in a single downloadable file or may limit the date range of exported records. We advise customers to request a pre-migration export of activity records separately and to test the export scope during discovery before committing to a migration date. Any activity records that cannot be exported from Onsite CRM are listed in the migration notes for manual re-entry post-migration if needed.
Custom field type mapping requires scoping decisions before import

GoHighLevel separates Contact custom fields from Opportunity custom fields, and some field types in Onsite CRM (e.g., multi-checkbox, date-only, currency) map differently depending on whether they are attached to a Contact or a Deal. We identify each custom field during discovery, determine its target type in GoHighLevel, and either transform the value format or flag it for the customer's admin to configure the target custom field before we begin the import phase. Skipping this step results in import errors or data truncation.
Onsite CRM company-contact association must be preserved manually if Organizations are disabled

If the customer's GoHighLevel account does not have Organizations enabled, Onsite CRM Company records do not have a native GoHighLevel equivalent and company names must be stored as a Contact custom field or noted for manual assignment. We confirm the Organizations setting during scoping and either map Company to Organization (if enabled) or document the alternative mapping. This affects reporting that relies on account-level grouping.

Migration approach

Six steps for a successful Onsite CRM to HighLevel data migration

Discovery and export coordination

We review the customer's Onsite CRM instance via screen share or screenshots to identify all active object types (Contacts, Companies, Deals, Activities, Tasks, Tags, Custom Fields) and their configurations. We then coordinate with the customer to perform the in-app CSV exports from Onsite CRM, validating each export file before transformation begins. Any export limitations (record caps, missing fields, date range restrictions) are documented and flagged for resolution before proceeding.
Schema design and GoHighLevel pipeline configuration

We configure the destination GoHighLevel account before any data import. This includes creating the pipeline(s) and stages to match the Onsite CRM pipeline structure, defining Contact custom fields and Opportunity custom fields to receive the mapped Onsite CRM custom field values, and enabling Organizations if the customer chooses to map Onsite CRM Companies to GoHighLevel Organizations. We work with the customer's GoHighLevel admin to confirm these settings before the first import.
Data transformation and field mapping

We transform the Onsite CRM CSV exports into GoHighLevel-compatible import format. This includes splitting the Contact export by any Onsite CRM lifecycle or status field, mapping company associations to either GoHighLevel Organizations or Contact custom fields, resolving stage names against the configured GoHighLevel pipeline, and formatting custom field values to match GoHighLevel field types. Tags are normalized for character limits and duplicate handling.
User reconciliation and GoHighLevel user provisioning

We extract every distinct owner and user referenced in the Onsite CRM exports and match by email against the GoHighLevel destination account's user list. Any Onsite CRM user without a corresponding GoHighLevel User is held in a reconciliation queue. The customer's GoHighLevel admin provisions the missing users before record migration begins, because OwnerId and assignee references on Opportunities and Tasks require an active GoHighLevel user to resolve.
Production import in dependency order

We import records into GoHighLevel in dependency order: Organizations (if applicable), Contacts, then Opportunities. Tasks and Activities are imported last, attached to the parent Contact or Opportunity records already established in GoHighLevel. Each phase emits a row-count reconciliation report, and we spot-check 20-30 records against the source CSV to validate field mapping accuracy before proceeding to the next phase.
Cutover, validation, and automation handoff

We freeze new writes to Onsite CRM during the cutover window, run a final delta export to catch any records modified during the migration window, and import the delta into GoHighLevel. We deliver a migration summary report showing record counts by object, any records skipped or flagged, and the written inventory of Onsite CRM automation logic requiring rebuild in GoHighLevel's workflow builder. We support a 72-hour post-cutover window for reconciliation issues. We do not rebuild Onsite CRM automations as GoHighLevel workflows; that is a separate engagement.

Platform deep dives

Context on both ends of the pair

Onsite CRM

Source

Strengths

Combines CRM, calling, SMS, and email marketing in a single subscription for small teams.
Weebly-hosted platform offers straightforward initial setup for businesses already using Weebly.
Provides basic pipeline visualization and deal tracking for straightforward sales processes.
Lead conversion tools and real-time outreach automation for teams prioritizing outbound activity.
Established in 2010, indicating over a decade of operational history.

Weaknesses

No publicly documented REST API, SDK, or webhook system according to apitracker.io, severely limiting programmatic integrations and data extraction options.
Extremely limited market visibility with minimal reviews, community discussion, or third-party integrations.
Appears to lack enterprise-grade features like advanced reporting, custom objects, or sophisticated workflow automation.
Data export is limited to in-app CSV/PDF options with no bulk API access, complicating large-scale migrations.
Small user base and limited review presence make it difficult to assess platform reliability and long-term vendor viability.

HighLevel

Destination

Strengths

Consolidates CRM, marketing automation, email, SMS, scheduling, and funnels into one platform at a predictable flat monthly rate.
Supports unlimited contacts and unlimited users on all paid tiers, removing per-record billing anxiety as databases grow.
Offers white-label and sub-account capabilities that let agencies resell access and manage multiple client environments under one billing relationship.
Includes built-in review management, reputation monitoring, and AI agents as native features rather than third-party add-ons.
Exports Contacts and Companies via a scalable async bulk CSV system that handles multi-million-row datasets without blocking the UI.

Weaknesses

The breadth of features creates a steep learning curve; advanced automations and Workflow configuration require significant time investment that smaller teams may not recover.
The platform charges usage-based fees for telecommunications and AI features that are not included in the base subscription, leading to bill surprises.
Recurring user reports on Reddit and G2 describe bugs, errors, and slow support response times that disrupt live marketing and sales operations.
Sub-account architecture, while powerful for agencies, adds migration complexity when identifying which client data lives in which isolated environment.
The platform is designed for agencies and SMBs; larger enterprises requiring deep reporting, custom objects at scale, or complex role-based access may outgrow its capabilities.

	Onsite CRM Source	HighLevel Destination
Strengths	Combines CRM, calling, SMS, and email marketing in a single subscription for small teams. Weebly-hosted platform offers straightforward initial setup for businesses already using Weebly. Provides basic pipeline visualization and deal tracking for straightforward sales processes. Lead conversion tools and real-time outreach automation for teams prioritizing outbound activity. Established in 2010, indicating over a decade of operational history.	Consolidates CRM, marketing automation, email, SMS, scheduling, and funnels into one platform at a predictable flat monthly rate. Supports unlimited contacts and unlimited users on all paid tiers, removing per-record billing anxiety as databases grow. Offers white-label and sub-account capabilities that let agencies resell access and manage multiple client environments under one billing relationship. Includes built-in review management, reputation monitoring, and AI agents as native features rather than third-party add-ons. Exports Contacts and Companies via a scalable async bulk CSV system that handles multi-million-row datasets without blocking the UI.
Weaknesses	No publicly documented REST API, SDK, or webhook system according to apitracker.io, severely limiting programmatic integrations and data extraction options. Extremely limited market visibility with minimal reviews, community discussion, or third-party integrations. Appears to lack enterprise-grade features like advanced reporting, custom objects, or sophisticated workflow automation. Data export is limited to in-app CSV/PDF options with no bulk API access, complicating large-scale migrations. Small user base and limited review presence make it difficult to assess platform reliability and long-term vendor viability.	The breadth of features creates a steep learning curve; advanced automations and Workflow configuration require significant time investment that smaller teams may not recover. The platform charges usage-based fees for telecommunications and AI features that are not included in the base subscription, leading to bill surprises. Recurring user reports on Reddit and G2 describe bugs, errors, and slow support response times that disrupt live marketing and sales operations. Sub-account architecture, while powerful for agencies, adds migration complexity when identifying which client data lives in which isolated environment. The platform is designed for agencies and SMBs; larger enterprises requiring deep reporting, custom objects at scale, or complex role-based access may outgrow its capabilities.

Complexity grading

How hard is this migration?

Moderate CRM migration. 4 of 8 objects need a mapping; the rest are 1:1.

Overall complexity

Moderate migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Onsite CRM and HighLevel.

Object compatibility
C
4 of 8 objects need a mapping; the rest are 1:1.
Field mapping clarity
C
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
B
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
B
Onsite CRM: Not publicly documented.
Data volume sensitivity
B
Onsite CRM doesn't expose a bulk API — REST + parallelization used for high-volume runs.

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Migrate from Onsite CRM to HighLevel

What this migration involves

Field-level fidelity

Schema-aware mapping

Relationships preserved

Full activity history

Attachments & notes

Two sides of the same decision

Onsite CRM

HighLevel

How Onsite CRM objects map to HighLevel

What specifically takes care here

Six steps for a successful Onsite CRM to HighLevel data migration

Context on both ends of the pair

How hard is this migration?

Estimate your Onsite CRM to HighLevel migration cost

What are you migrating?

Frequently asked questions about Onsite CRM to HighLevel data migrations

Can't find your answer?

Related migrations to explore

Move from Onsite CRM.
Land in HighLevel, intact.

Migrate from Onsite CRM to HighLevel

What this migration involves

Field-level fidelity

Schema-aware mapping

Relationships preserved

Full activity history

Attachments & notes

Two sides of the same decision

Onsite CRM

HighLevel

How Onsite CRM objects map to HighLevel

What specifically takes care here

Six steps for a successful Onsite CRM to HighLevel data migration

Context on both ends of the pair

How hard is this migration?

Estimate your Onsite CRM to HighLevel migration cost

Frequently asked questions about Onsite CRM to HighLevel data migrations

Can't find your answer?

How long does an Onsite CRM to GoHighLevel migration take?

Do Onsite CRM automations and workflows migrate to GoHighLevel?

What does an Onsite CRM to GoHighLevel migration typically cost?

Can we keep Onsite CRM running during migration?

Do we lose historical activity data (calls, emails, tasks)?

What happens to Onsite CRM custom fields during migration?

Why do teams switch from Onsite CRM to GoHighLevel specifically?

Does FlitStack AI also help configure GoHighLevel after migration?

Related migrations to explore

Move from Onsite CRM. Land in HighLevel, intact.

Move from Onsite CRM.
Land in HighLevel, intact.